Electronic cigarette



FIG. 1 is a perspective view of an electronic cigarette showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken lines are shown for the purpose of depicting parts of the electronic cigarette that are unclaimed subject matter and form no part of the claimed design. 

CLAIM The ornamental design for an electronic cigarette, as shown and described. 